Improvement in wash-boilers



F. J. BOYER. Wash-Boiler.

Patented Feb; 18, 1879 11v VENTOR FIGEI WITNESSES JITTQRJVEY WASHINGTON,o c

mamas. PHI) UNITED STATES PATENT OFFICE.

FRANKLIN J. BOYER, OF SHARON HILL, PENNSYLVANIA.

IMPROVEMENT IN WASH-BOILERS.

Specification forming part of Letters Patent No. 212,299, dated February18, 1879 application filed August 2, 1878.

To all whom it may concern:

Be it known that I, FRANKLIN J. BoYER, of Sharon Hill, in the county ofDelaware and State of Pennsylvania, have invented certain new and usefulImprovements in WVash-Boilers, which improvements are fully set forth inthe following specification, reference being had to the accompanyingdrawings.

Figure l is a perspective view of a washboiler, partly in section. Fig.2 is a perspective view of the lid. Fig. 3 is a side elevation.

The invention isdesigned to be applied to the improvement in washboilersfor which Letters Patent of the United States were granted unto ThomasGunsalus dated June 5, 1877 butit may be applied to all wash-boilers. Itis for catching and preventing the escape of the overflow causedby theebullition of the water in the boiler; and consists of a washooilerprovided wit-h an upwardly-extending rim or edge and a lid having aperforated depending flange, whereby the steam and water 7 are allowedto'escape through the perforations of said flange, the water beingreturned by means of the rim to the boiler.

I am also aware that vessels have been made with lids having dependingperforated flanges,

\ in which, while there are found means whereby the steam and water mayescape, provision is wanting for the return of the water to the vessel,the liquid falling upon the stove around the exterior of the vessel.

My invention aims to construct a boiler from which the steam and watermay readily escape without the unseating of the lid, and to which theoverflow may be returned.

In the accompanying drawings, A is a Washboiler, B are detachableconduit-pipes, and (l a perforated false bottom, supported byaperforated brace, D. E is an upwardly-extending flange of the boiler A,for catching the overflow. The flange F of the lid G is perfo rated, asshown at H, Fig. 2, or out out, as at H. An excess of pressure withinthe boiler A will raise the lid G and permit an escape or overfloweither through the openings H H .or under the flange F, which will bereturned through the said openings.

' It will be seen that the depending flange need never be lifted abovethe top edge of the boiler to enable the water to escape and overflow,as this result is effected the moment the perforations in the flangeappear above said top edge. The consequence is that a part of the flangeis always in position to prevent the detachment of the lid from theboiler, and to serve as a guide to the lid when it is allowed to seatitself again by the removal of the under pressure. I therefore do notclaim a lid having a solid depending flange in combination with a boilerprovided with an outwardlyflaring upper part. Neither do I claim a lidhaving a beaded bottom edge in such eonibination, in which latterconstruction, there being no guide, the lid when unseated by underpressure assumes a variety of positions; but,

Having described my said improvement, I claim as my invention- Theimproved wash-boiler herein described, provided with the upwardlyextending rim or edge E and the lid G, having the perforated dependingflange F, whereby the steam and water are allowed to escape through saidperforated flange and the water is returned to theboiler by the rim E,as specified.

In testimony whereof I hereunto sign my name in presence of twosubsoribin g witnesses.

FRANKLIN J. BOYER.

